我才学驱动程序,写的一个hello world
不加时正常,加了之后报错

#define MODULE
#include
#include

int xiayu;

int init_module(void)
{
 int err;
 MODULE_LICENSE("GPL"); 
 printk("hello,worldn");
 return 0;
}

void cleanup_module(void)
{
 printk("Goodbye cruel worldn");
}


gcc -c -I /usr/src/linux-2.4.20-8/include /home/xy/root/hello.c

我在网上查了,说要加 -I /usr/src/linux-2.4.20-8/include

我加了后,只是错误提示变了,但是还是报错,请各位帮帮忙.帮我看看是怎么回事?谢谢了!


In file included from /usr/src/linux-2.4.20-8/include/linux/sched.h:16,
                 from /home/xy/root/hello.c:4:
/usr/src/linux-2.4.20-8/include/linux/timex.h:173: field `time' has incomplete type
In file included from /usr/src/linux-2.4.20-8/include/linux/sched.h:23,
                 from /home/xy/root/hello.c:4:
/usr/src/linux-2.4.20-8/include/asm/mmu.h:12: field `sem' has incomplete type
In file included from /usr/src/linux-2.4.20-8/include/linux/sched.h:31,
                 from /home/xy/root/hello.c:4:
/usr/src/linux-2.4.20-8/include/linux/pid.h:18: field `task_list' has incomplete type
/usr/src/linux-2.4.20-8/include/linux/pid.h:19: field `hash_chain' has incomplete type
/usr/src/linux-2.4.20-8/include/linux/pid.h:24: field `pid_chain' has incomplete type
/usr/src/linux-2.4.20-8/include/linux/pid.h:36: parse error before '(' token
/usr/src/linux-2.4.20-8/include/linux/pid.h:38: parse error before '(' token
/usr/src/linux-2.4.20-8/include/linux/pid.h:43: parse error before '(' token
/usr/src/linux-2.4.20-8/include/linux/pid.h:49: parse error before '(' token
/usr/src/linux-2.4.20-8/include/linux/pid.h:52: parse error before '(' token

哦，你是2.4内核，那看Linux Device Driver 2nd，或许你已经在看了，建议看看它的示例代码，还有Makefile的写法。